body {
    height: 100%;
    padding: 0;
    margin: 0;
}

html {
    height: 100%;
    box-sizing: border-box;
    padding: 0;
    margin: 0;
   
  }

  #app {
    height: 100%;
  }  

  /* .cardItem{
    padding: 15px;
    margin: 15px;
    background: #fff;
  } */